#include "calculator.h"
#include <iostream>

int main(int argc, const char * argv[])
{
    while(true)
    {
        std::string str;
        std::cin >> str;
        if (str=="exit"||str=="quit")
        {
            std::cout << "Program end"<<std::endl;
            return 0;
        }

        // std::cout <<"Your input : " << str << std::endl
        Calculator calculator(str);
    }

}

